Each year, the OOG holds a spring meeting hosted by OOG members

​OOG 2024, 6–9th June
​Stockholm
(Maria Fili & Gustav Stalhammar)

 Cities and hosts for future meetings:

• 2025: Genova (Ulrich Pfeffer)
• 2026: London (Gordon Hay)
• 2027: Paris (Alexandre Matet)
• 2028: Athens (coordinate with ISOO)
• 2029: Milan (Martina Angi)